Table 1.
Mean (±SD) characteristics of study subjects divided into low, moderate, and high tertiles according to their PI at birth
| Characteristic | Low PI* | Moderate PI† | High PI‡ | P§ |
|---|---|---|---|---|
| Age, years | 29.2 (3.95) | 29.0 (3.55) | 30.1 (3.04) | 0.37 |
| Self-reported menarcheal age, years | 13.6 (1.18) | 13.2 (1.17) | 13.8 (1.33) | 0.30 |
| Body height, cm | 164.0 (6.98) | 161.8 (5.73) | 162.2 (6.3) | 0.30 |
| Body weight, kg | 63.1 (11.82) | 60.7 (10.41) | 59.7 (7.35) | 0.34 |
| Body mass index, kg/m2 | 23.4 (3.97) | 23.2 (3.77) | 22.7 (2.62) | 0.69 |
| Body fat, % | 28.1 (7.87) | 26.7 (7.3) | 26.4 (6.19) | 0.54 |
| Length of menstrual cycle, days | 28.6 (3.87) | 27.7 (3.03) | 29.6 (3.67) | 0.08 |
| Physical activity, MET-h/day | 44.7 (15.11) | 44.1 (11.32) | 40.9 (10.45) | 0.38 |
MET, metabolic equivalent.
*Mean = 18.08 kg/m3; n = 35.
†Mean = 21.15 kg/m3; n = 35.
‡Mean = 24.79 kg/m3; n = 36.
§P values denote significance of variation among the three groups (from ANOVA).